I am 1000% sure that Brienne's travels won't be in S4. Her storyline reconnects with Jaime's at the end, and Jaime has a lot to be doing, first in KL and then the Riverlands, before he can go off with Brienne again. It's basic timeline stuff.
Anyway, looking at it location-by-location:
Kings Landing:
- Oberyn Martell
-- Along with possibly Arianne, probably Ellaria and possibly one of the Sand Snakes.
- Mace Tyrell
- Randyll Tarly (IIRC he pops up in KL for a bit?)
- Possibly Taena Merryweather
- Possibly Lollys Stokeworth (Bronn needs a reason to not fight for Tyrion, but it's likely he'll just say "Cersei promised me lands and a lordship", we don't actually need to see Lollys)
The Wall:
- Bowen Marsh? If his role isn't given to some other NW dude instead (eg. Thorne).
- Cotter Pyke
- The other non-Slynt applicant for LC (don't remember who it was)
Meereen:
- Hizhdar zo Loraq
- The Shavepate
- Whatever the 8000 other people are called
- This of course all depends how deep they go into Meereenese politics this season, or if they leave it all for the next.
The Vale:
- Lothor Brune
- Whoever will replace Marillion in his role.
Iron Islands:
- Victarion
- Euron
- Aeron, if he isn't cut
- Possibly Rodrick Harlaw (aka. the only sane ironborn other than Asha)
- Possibly Qarl
Braavos? - depends what they do with Arya in S4. I always thought her meeting the Kindly Man would make a good finishing point but idk...
- The Kindly Man
I don't think Bran or Theon require any new characters... that's all, right?
Edited by The_Void, 31 January 2013 - 04:35 PM.